Where is the fountain of knowledge for learning about CNC setups / understanding them

[Palletlad]

urgh this machine is doing my head in... really tempted to just scrap it all, been trying to find out what the Chinese charts actually mean on the board so I don't damage the board by doing something wrong.
I initially was looking around at breakout boards and their reviews and discovered my breakout board has on board axis drivers as well so if I ever decide to replace it I have to buy stepper drivers as well.
So was looking at the MX3660 which seems perfect (all in one, little hassle) just trying to find a seller and then thought I'm getting distracted again.
I have on the board ("ON DP" K1, K2, K3, K4) accompanied with SW1, SW2 AND SW3 per X Y and Z drivers
K3 and SW1 are the switches set for all three drivers
I found a chart that may assist but still I know too little on this side as all I wanted was to make stuff with the machine.
http://img.yunqudao.com/UploadFolder...ault/3_649.jpg
is changing K3 to K1 what you mean Doddy to set the micro stepping?
Also I'm going to do a test by taking the motors off of the frame and see if they still make the jarring noise when not attached to the rails, if they still do whilst disconnected then that should eliminate any frame/rail/ball-screw issues I presume and my guess would be either power or a faulty connections somewhere right?
if the motors run smoothly and no jarring when loose then I pretty much scrap the frame? (take hammer to it)
Also (sorry for all the questions) but how can I tell what PSU I have as the only sticker on it was all in Chinese?
PS. the things I have done so far are the following:
brought a standalone dedicated pc with XP and parallel cable for the cnc so no background extras or settings to interfere.
tested multiple settings in Motor Tuning with all having same affect (all three axis jar at least twice and not always in the same area)
tested the rails and alignment also checked the frame was square
have not yet used the machine in any form or had the spindle on whilst testing the motors.
I have not been able to switch the parallel cable with another yet as do not have a spare.
would a UC100 connection solve issues between pc and control box IF it is a communication issue?
(tired now but was trying to think all possibilities)